Die-casting machine



April 23, 1925. 1,535,313

. c. F. HUMMEL DIE CASTING MACHINE Filed March 8. 1924 2 Sheets-Sheet 1April 28, 1925. I 1,535,313

C. F HUMMEL I DIE CAS'IE ING MACHINE Filed March 8, 1924 .2 Sheets-Sheet2 A Way! Patented Apr. 259 1925..

UNITED CHARLES E. HUMMEL, 0F ILIOIJ', NEW YORK.

DIECA$TING- lVEACHINE.

Application filed March 8, 19%. Serial lllo. 69?,Wl.

To all whom it may concern:

Be it known that I, YGHARLES F. HUMMEL, a citizen of the United Statesof America, residing at Ilion, in the county of Herkimer and State ofNew York, haveinvented certain new and useful Improvements in DieCasting Machines, of which the following is a specification.

My invention relates to casting apparatus and more particularly to themold or die supports thereof.

An important object of the invention is the provision of a device of theabove men tioned character with means to lock the mold or die supportin, its downward position so that the support cannot be moved unlessdeliberately unlocked, thereby insuring' safety to the operator.

Another object of the invention is to pro vide a device otthis-character. which will combine the support lifting and unlockingoperations, wherebyeconomy of time and energy will he effected.

A further object of the invention is the provision of a device of thischaracter which will be simple in construction and operation, stronganddurable.

Other objectsand advantages of the invention will be-apparent during thecourse.

of the following description.

In the accompanying drawings which form a part of this specification andin which like numerals are employed to designate like parts throughoutthe same:

Figure 1 is an elevation of a die casting machine embodying myinvention,

' Figure 2 is a plan view of the same, parts being broken away,

Figure 3 is a vertical sectional view taken on the line 8--8 of Figure2, and looking in the direction of the arrows,

Figure 4 is a similar view, showing the mold or die support in itsunlocked and raised position, 1 1

Figure 5 is a side elevation of the mold support and its locking andoperating mechanism,

Figure 6 is a similar view showing the mold or die support in its raisedposition,

Figure 7 is a perspective view of the operating and locking mechanism,

Figure 8 is a detail perspective view of the operating shaft and sleeve,and

Figure 9 is a detail sectional view taken on the line 99 of Figure 2..

In the drawings wherein for the purpose of illustration is shown apreferred enrhodiment of my invention, the numeral 1.0 designates a diecasting machine of the usual construction, and although shown as a center gated type, my invention is not limited. to any type or constructionof casting ma chine. This machine 10 is provided with a removable coveror top 11 of the usual formation which has the usual nozzle 12 ar "angedsubstantially centrally thereof. Upstanding lugs 13 are arranged at theedges of the cover 11, in which the rotatable sleeve 14 is journalled,with one of its ends 15 extenaing beyond the lug a substantial distance.Ro tatably mounted within the sleeve 1 L is shaft 16 which is providedwith spaced pinions 17 which are spaced from the ends of the shaft.Openings 18 are formed in the sleeve l i to correspond to the pinions1?, and the mold or die support or base 19 is rigidly mounted on thesleeve 14 by means of the lugs 20, which are also provided with openings21 which correspond to the open ings in the lugs 23 carried by theopposite end of the support 19. Arranged within the openings 21 and 22are slidable locking rods or latches 24: having their ears turned up toform stops 25. These rods or latches 24 are provided with racks whichmesh with the pinions 17. Upright lugs 2'? are arranged on the cover 11and have openings 28'to receive the ends of the rods or latches 24; andto act as keepers. These lugs are provided with bevelled. guides toguide the rods 24;. and the ends of the rods are also preferablybevelled.

A lever 30 is mounted on the projecting; end 15 of the sleeve 14 to turntherewith. In the form shown in the drawing transverse slot-31 receivesthe lug of the lever 80 and a small amount of play is allowed betweenthe lever and the sleeve. Rigidly attached to the end of the shaft 16 isa manually operated lever or handle 33 which has an extension 34 provided with a segmental slot This slot is adapted to receive the pin 36which is rigidly mounted in the lever 30. A. coil spring 37 has one ofits ends connected to the outer end of this pin 36, and the other end ofthe spring is connected to some part of the frame work of the castingmachine 10.

llhe cover 11 may also be provided with guides 39 arranged in alignmentwith the locking rods or latches. The support 11) has a central opening38 adapted to align with the nozzle 12 when the support is in itslowered position, and the mold is supported on the base 19 and over theopening 38 and nozzle 12.

In operation, the support or base 19 is normally in its lowered positionwith the locking rods or latches in their locking position with theirends in the openings lVhen it is desired to raise the die support 19.the handle or lever 33 is manually raised. his will rotate the sl.,.ft16 and the pinious 17 will operate the latches and withdraw them fromthe openings 28, thereby unlockiug the support 19. During this operationthe sleeve 1% will remain stationary, due to the slot 35. When the endof the slot 33 is reached, continued raising of the lever of handle 33will raise the lever 30, through the pin 36. and when the end of theslot 31 is reached, by the lug 32. further movement of the handle willrotate the sleeve 14:. This rotation of the sleeve 14: will cause thesupport 19 to swing upwardly about the sleeve as a pivot, which willremove. the .fpport from the nozzle 12.

The upward movement of the lever 30 is under the tension of the spring37 which will serve to return the support 19 to its downward positionwhen the handle 33 is released. Downward movement of the handle willrotate the shaft 16 and pinions 17 and return the latches to theirlocking position with'a the openings 28.

It will therefore be seen that the unlocking and raising of the supportis acconr' plished by a single movement of the handle or lever 33 andthat the support will not be unlocked unless it is intended to beraised.

It is to be understood that the form of my invention herewith shown anddescribed is to be taken as a pre ed embodiment of the same and thatvarious changes in he shape, size and arrangement of parts may beresorted to without departing from the spirit of my invention or thescope of the suhioined claims.

Having described my invention what I claim and desire to protect byLetters Patent is:

1. In a casting machine, a mold support, means to lock the mold supportin its lowered position and means to unlock and raise the support in asingle operation.

2 In a. casting machine, a support, means to lock the support in itslowered position, an operating lever, and means whereby when theoperating lever is moved, the sup port will be unlocked and when thelever is moved further the support will be moved to its raised position.

3. In a casting machine, a support, a latch carried by said support andadapted to enter a keeper, and means to withdraw the latch from thekeeper and raise the support, in a single operation.

In a casting machine, a rotatable sleeve, a mold support rigidly mountedthereon and adapted to be locked in its lowered position, a shaftrotatably mounted in said sleeve and means operative by said shaft tounlock the mold support and swing it to its raised position.

5. In casting machine, a rotatable sleeve, a mold support rigidlymounted thereon and adapted to be locked in its lowered position, ashaft rotatably mounted in the sleeve, means to rotate the shaftindependently of the sleeve to unlock the mold support, and meanswhereby the sleeve will be rotated by the shaft to swing the moldsupport to its raised position.

6. In a casting machine, a rotatable sleeve, a die base rigidly mountedthereon, and adapted to be locked in its lowered position. a shaftrotatably mounted within said sleeve, a lever carried by the shaft,means whereby moven'ient of the lever will rotate the shaft to unlockthe die base, and means whereby further movement of the lever willrotate the sleeve to swing the die base to its raised position.

7. In a casting machine, a rotatable sleeve, a support rigidly mountedthereon, and adapted to be locked in its lowered position, a shaftrotatably mounted within said sleeve, lever carried by the sleeve and asecond lever carried by the shaft and having a segmental slot, saidfirst named lever having an extension to engage in said slot.

8. In a casting machine, a rotatable sleeve, a support rigidly mountedthereon, a shaft rotatably mounted in said sleeve, a latch carried bythe support. a keeper for said latch, 21 rack carried by said latch. apinion carried by the shaft and adapted to mesh with said ratchet, alever carried by the sleeve, a lever carried by the sh aft and having asegmental slot, and an extension carried by said first named lever toengage in said slot.

9. In a casting machine, a rotatable sleeve, a support rigidly mountedthereon, a shaft rotatably mounted within said sleeve, latches carriedby the support, keepers to receive said latches, racks carried by saidlatches, pinions carried by the shaft to enthe racks, a lever carried bythe sleeve, a lever carried by the shaft and having a segmental slot, alateral extension carried by said first named lever to engage in thesegmental slot, and tensioning means attached to the lateral extension.

10. In a casting machine, a rotatable sleeve having spaced openings, asupport rigidly mounted thereon, latches carried by the support to lockit in its lowered position, said latches being provided with teeth,

' slot therein, a pin carried by the first named lever to engage withinthe slot, and a coil 1 spring attached to said pin to tension the Intestimony whereof I afiix my signature.

CHARLES F. HUMMEL.

